Magazine firearm



(No Model.)

MAGAZINE PIREARM. No. 551,143.

3 Sheets-Shelet 2. A. G. NOLCKEN.

Patented Dec. 1o, 1895.`

UNITED STATES ATENT OFFICE.

AXEL GUSTAVUS NOLCKEN, OF MOISEKATZ, RUSSIA.

MAGAZINE-FIREARM.

SPECIFICATION forming part of Letters Patent No. 551,143, dated December 10, 1895.

Application filed February 2, 1893. Serial No.

England January 3, 1893, No. 120,

T a/ZZ whom, it may concern:

Be it known that 1, AXEL GUsTAvUs NOLCKEN, a subject of the Emperor of Russia, residing at Moisekatz, per Verre, Livland, Russia, have invented certain new and useful Improvements in Magazine-Firearms, of which the following is a specication.

This invention has been patented in Belgium, January 2, 1893, No. 102,842; in England, January 3, 1893, No. 120, and in Austria- Hungary, June 16, 1393, No. 1,773 and No. 1,752. y

My invention relates particularly to a revolving magazine, a rising and fallingbreechblock arranged to automatically operate a lock for the firing-pin, and a safety-lock for the firing-pin arranged to be controlled by a movable lever at the trigger-guard.

In the drawings, Figure 1 is a central vertical section of the arm with parts in elevation. Fig. 1 is a detail view of the triggerguard and its connection to the safety-catch, showing the parts in a different position. Fig. 2 is a transverse section in rear of the rotary magazine and breech-bolt. Fig. 3 is a side view of the bolt; Fig. 4, a rear detail view of the rotary cartridge carrier or magazine. Fig. 5 is a transverse section through the magazine-chamber. Fig. 6 is a side view of the axle of the rotarymagazine. Fig. 7 is a plan yview of one of the cradles of the magazine for holding cartridges. Fig. S is a detail of part of the guard-lever, showing the connections between the same and the breechbolt. Fig. 9 is a top view of the recoil-block. Fig. 10 is an end view of the same with attached parts. Fig. 11 is a side view of the parts shown in Fig. 8. Fig. 12 is a detail of the connection between the guard-lever and the rotary magazine. Figs. 13 and 14 are detail views, and Fig. 15 is a bottom plan* view of the firing-pin shank.

The breech-bolt J is operated to and from the barrel by the toggle-levers F Gr, there being a pair G on the right of the arm, as in Fig. 8 at G, and in Fig. 13, and a pair F at the left of the arm, as in Fig. S, said latter pair being also shown in Figs. 11 and 1. The arms of each pair are pivoted together at lm, their rear ends are pivoted to the frame at g, and

460,738. (No model.) Patented in Belgium January 2, 1893, 110.102,842; in

and in Austria-Hungary June 16,1893, No. 1,773 and No. 1,752.

their front ends to the breech-bolt J, Fig. 1, at f, the pivot-pin also serving to hold the plug /L in place, said plug being arranged at the rear end of the bore of the sliding breech-block, and through which plug the front reduced part of the iiring-pin K passes. The togglearms are operated by the arms E, having lateral studs b at their upper ends entering the slots e in the inner faces of the rear members of the toggle-arms. The arms E are formed with the guard-lever D, as shown in Figs. 1, 4, and 11, and when the lever is in the position shown in Fig. 1 the arms of the toggle will be straightened out or more nearly coincident and the bolt will thus be seated, as in Fig. 1, and will be so held. WVhen the guard-lever l) is thrown down, the studs b, moving rearwardly, will throw down the central toggle-joint m and the breech-bolt will be thus retracted.

The locking of the breech-bolt is veffected by the rising and falling block B, pivoted to the frame at B and having depending studs B2. The forward end of this block is operated vertically by a link 7c pivoted thereto from a lever K pivoted to the stud M of the frame Fig. 1 and operated by the shoulders CZ on the arms E. As shown in Fig. S, there are two of these arms E, and the recoil-block B fits in between them and has two of the studs B2, Fig. 10, and there are also separate pairs of levers K and link k, Fig. 10, one for each side of the breech-block. The depending studs B2 are borne upon when the lever D is closed'in the position of Fig. 1 by shoulders c c on the arms E, and thus the recoil-block B is supported.

The grooves e of the toggle-arms are formed with a curved portion, as e in Fig. 11, and the arrangement is such that the block B will move down before the breech-bolt J begins to move back and the block will not be raised to the highest position until after the breech-bolt has been thrust home to its seat. The pivot-pin g for the rear toggle-arms is notched centrally at g', Fig. 14, so as to allow the rectangular shank K of the firing-piu to pass through.

A spring K2 in the breech-bolt J presses on the nut z' of the firing-pin to drive the same loo against the cartridge when released. The firing-pin may be removed by unscrewing the cap L at the rear of the frame, Fig. 1.

The iiring-pin when retracted as hereinafter described is held by the sear K movable vertically in the frame and operated from the trigger 30 by thel lever 3l under tension of spring 32. A safetycatch or lock 0X, pivoted to the frame, engages the hook K3 on the rear end of the firing-pin shank when retracted and this can be released when the guard D is in the position shown in Fig. 1, so that the spring portion c? of the guard engages the leaf-spring 26 to loperate the safety-catch CX through the rod c when the gunner presses on the spring c2. The leaf-spring 26 is fixed to the frame, extends through a slot 25 in the frame, and the rod c4 bears thereon. Fig. 1fl shows the parts in a different position when pressure is applied to the spring c2 by the gunner. This action merely releases the safetycatch after which it is necessary to pull the trigger in order to discharge the gun, it being understood that the pressure of the gunners hand on the spring c2 maintains the safety in released position. With the parts in position shown in Fig. 1 it will be seen that the recoilblock B abuts against the rear end of the breech-bolt J and thus locks the same in place.

The breech-bolt is of concave curvature and at its front end it has two hooks j for extracting the cartridge, and at its rear upper part it has a stud 2O moving in a groove 2OX in the breech-frame and a lower V-shaped stud 21 adapted to move in a corresponding groove 21X in the upper surface of the recoilblock B when said block is lowered by the throwing down of the lever D, which, as before stated, depresses the block, so that its groove is in line with the V-shaped stud 21 and the bolt is free to be retracted. When the block is down, it is firmly supported by the stud M.

At the rear of the breech-bolt an angle safety-lock ct is arranged to move vertically in a groove a', Fig. 2. Then said angle-lock is raised, so that its upper lateral extending portion a4, Figs. 1. and 2, is raised above the line of the shoulder K4 of the firing-pin, as shown in Fig. 1, the firing-pin is free to fly forward when the trigger is pulled; but when the portion CL4 is down, so as to rest on the pin K', as in Fig. 2, it will be in the path of the shoulder K4 and the gun cannot be red, as the pin will be arrested by contact of the shoulder K4 with the portion c4 before the percussion-cap is touched by the iiring-pin. The safety-lock is held up when the block B is up bya projection BX, Figs. 9 and 10 and dotted lines Fig. 1, and the pin is now free to iiy forward when the trigger is pulled.

The safety-lock may be forced down by any suitable spring. Y

The forward member of the pair of toggles G, as in Fig. 13, carries a spur n, arranged to lie in the socket n of the breech-bolt, as shown in Fig. 3, and the first movement of the parts when the lever D is thrown down will cause the spur n to engage the shoulder K4 of the firing-pin and move the same back slightly, so that the safety-lock ct will immediately fall in front of the shoulder K4, and thus hold the pin back and prevent any explosion until the safety-lock a is again lifted by the rise of the recoil-block and the breechbolt is forced to its seat and the breech is fully closed.

The magazine-casing is of cylindrical form, Figs. 1, 2, and 5, having on` the Yright-hand side a hinged iiap 0', catches of any wellknown construction being used at r to hold this hinged side. closed. The magazine-casing throughout its circumference and the extent of the iiap is provided with a groove 25 for the cartridge-flange. The end wall of the magazine-chamber has a pivot S for the axis U of the rotary magazine, and a slot e', Fig. 5, is also formed in this wall, through which the pawl 0c, Fig. 1, passes to engage the teeth X,Fig. 4,0n the axis O of the rotary magazine. A circular projection t, Figs. 1 and 5, extends around the pivot S, forming a groove t for the cartridge-flanges. A shallow groove S is also formed in this wall to protect the percussioncaps against pressure and friction. The opposite end of the axis U of the rotary magazine consists of a pin T, Fig. 1. This carries a spring-pin TX, acting as a detent by lengaging openings in the axis, said pin having a rounded end and automatically engaging the openings but allowing the axis to turn when pressure is applied to the pawl x. The magazine comprises the axis U, having the grooves u, Fig. 4:, in which the cradles or cartridge-holders o are carried, being soldered therein. These cradles have spring portions v', Fig. 7, at the forward ends to embrace the cartridge, while the rear portions are larger to correspond with the rim of the cartridge. The cartridge is placed in the cradle by swinging the flap 0 open, and the empty shells may be removed in the same way. The firing-pin is retracted by the togglearms G F, when the central joint 'm thereof is thrown down.

The pawl c is carried by the arm H, arranged loosely on the pivot of the leverD, and the arm H is thrown up when the lever D is about completing its movement by the portion O3 of said lever strikingV the shoulder O2 on the arm H. Fig. 8 indicates that the lever D has a portion in the same plane with part of the arm H, so that the two shoulders will contact when the lever D is thrown up. A spring 23, Fig. 12, presses the arm H down as soon as the lever D begins to move upwardly.

P is a centering-pin for the guard-lever D.

I claim- 1. In combination, the breech bolt, the mechanism for operating the same comprising the toggle arms arranged in pairs, the iiring pin and operating mechanism, the rising IOO IIO

IZO

and falling recoil block arranged to lock the bolt in forward position and means for operating the same, said recoil block operating between the toggle arms.

2. In combination, the breech bolt, the firing pin and operating mechanism, the safety lock therefor arranged at the rear of the breech bolt, the rising and falling recoilblock and operating mechanism therefor said block being arranged to lift the safety lock and to engage the rear end of the breech bolt, substantially as described.

3. In combination, the breech bolt, the firing pin, the toggle arms for operating the breech bolt, the lever D connected to the toggle arms, the rising and falling recoil block B, the connections from the lever D to the recoil block, the rotating magazine and the paWl and ratchet mechanism therefor with op- 2o erating connections from the lever D to the said paWl and ratchet mechanism, substantially as described.

4. In combination, the breech bolt, the fir.- ing pins having a hooked rear end, the catch lever cx, the rod c for operating the same, the spring 26 extending through an opening in the frame and engaging the rod and the guard lever D having a portion c2 for engaging the spring 26, Whereby the ring pin may be released by pressure on the guard lever portion c2 operating the spring 26 and the rod c and catch lever cx, substantially as described.

In testimony whereof I have signed my name to this specication in the presence of 3 5 -tWo subscribing Witnesses.

AXEL GUSTAVUS NOLCKEN. Vtnesses: v N. TscHEKALoFF, J. I-IIERLENG. 

